Hi all ,Decided to check and adjust cam chain on the 73 850 today , when i pulled the cover away a hollow dowel tapered at one end fell from the left side i am assuming it came from the oilway between the cases maybe someone can clarify this for me, question is i cant see picture of this dowel in any of my manuals or the parts list, also i cant remember seeing this dowel on my other 850 when i did the chain on it some weeks ago, so is it supposed to be there and could it be that it is missing from the other bike ,any help with this would be most welcome.